A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
Collective dynamics on a crystal composed by disparate-mass particles:Li22Pb5
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
The lattice dynamics of crystalline Li 22 Pb 5 is studied by means of computer simulations. The calculated spectrum shows several bands corresponding to modes in which only the light atoms execute motions. The spectrum of acoustic modes is found to be well separated from the high-frequency bands and is in all cases confined to frequencies below 4 meV. The results are shown to provide a clue for the understanding of the origin of the strong anomalous dispersion features found in the melt bydoi:10.1103/physreve.59.3212 fatcat:r5uxtzgutfcgvhr7cfon7hcfda